When dealing with candida infection, successful treatment is done in two phases. The first phase deals with not feeding the yeast by limiting sugars and starches and killing the yeast by taking antifungals. This phase can take several months until symptoms subside and there is little die-off herx reactions.
The second phase is the restoring phase where the good friendly bacteria found in probiotics and fermented veggies and kefir restore the microbiome of the gut to health. It does little good (there is some value but not a lot) to take probiotics during the kill phase because probiotics feed on prebiotics which are the fiber, some sugars (FOS, GOS, and lactose) and resistant starch which also feed candida.
The tricky part is switching from the kill phase to the restore phase. If you introduce prebiotics too early you will cause candida to flare up. But you will never overcome candida if you only deal with killing yeast and eating a near-zero carb diet. What I found (with direction from Jorge) is a prebiotic that feeds good probiotic bacteria (lactobacilli and bifido bacteria) but does not feed candida. It is called lactulose. It takes sweet like corn syrup but it is not digestible by human digestion but is digestible by probiotics in the colon. The growing gut bacteria produce butyric acid which heals leaky gut and also lowers the pH of the colon which causes the candida to change from the invasive, pathogenic fungal form to the benign spore form.
So when you are at the place where you are switching from the kill phase to the restore phase, start (or increase) taking probiotics twice a day. Fermented veggies like some sauerkraut and some pickles are loaded with good probiotic bacteria. One serving can have as many microbes as a whole bottle of probiotics. I strongly suggest getting some either by making your own or buying some. Sauerkraut and pickles that have live probiotic bacteria will be in the refrigerated section of the store. It will not contain any vinegar. The best known brand out there is Bubbies. They carry it at Whole Foods and at Sprouts. Worth every penny. Don't throw away the juice; drink it. Kefir is good too. I know that we've been taught that dairy is a no-no but my experience with kefir has been good. All the lactose has been digested by the live microbes and the casein has been modified by L. casei so it isn't a problem. If you feel uncomfortable, there is water kefir. If you can't make kefir, most stores carry Lifeway brand kefir. Get the unflavored, unsweetened kind.
Stomach acid is lowest early in the morning. Take your probiotics then. Four ounces of sauerkraut, one pickle and 1/2 cup of kefir. Fermented veggies have a wide assortment and variety of probiotic strains. That is why I recommend them highly along with their potency. Take lactulose six hours after the probiotics. Start with 1 teaspoon (5 ml.) every eight hours. If you live in England you can buy lactulose over the counter. If you live in the U.S. you can buy it on Ebay. After one month at this dose you can change the dosage to 2 teaspoons (10 ml.) every 12 hours. What I have found is that good probiotic bacteria proliferating in the colon brings about a nice feeling of serenity and well-being. They also synthesize certain vitamins and are responsible for 70% of the body's immunity! Yes you need to feed the probiotics but like I said, typical prebiotics like inulin, FOS, GOS, lactose, etc. will feed candida. Lactulose won't feed candida but I do think you should wait to take it only after you have completed the kill phase of your treatment.
I do want to credit Jorge for bringing the research on lactulose to the attention of the candida support community. Below is a link to some posts he made about it: